Bump json5, css-loader, style-loader, webpack and webpack-cli#31

dependabot[bot] wants to merge 1 commit intomastertienne/webpack-hook-plugin:masterfrom

dependabot/npm_and_yarn/json5-and-css-loader-and-style-loader-and-webpack-and-webpack-cli-2.2.2tienne/webpack-hook-plugin:dependabot/npm_and_yarn/json5-and-css-loader-and-style-loader-and-webpack-and-webpack-cli-2.2.2Copy head branch name to clipboard